A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5905-01-116-3520
NSN 5910-01-041-6982
NSN 5835-01-291-5405
NSN 5996-01-374-7963
NSN 5960-01-071-6267
NSN 6320-00-108-7049
NSN 5960-00-287-9932
NSN 5925-01-164-8546
NSN 6130-00-412-8191
NSN 6610-01-518-8344
NSN 5998-00-317-7215
NSN 5975-01-234-6646